[{"doi":"10.1103/physrevb.81.245407","title":"Dynamics of photoexcitation and stimulated optical emission in conjugated polymers: A multiscale quantum-chemistry and Maxwell-Bloch-equations approach","author":[{"orcid":"0000-0003-4042-4951","last_name":"Schumacher","id":"27271","full_name":"Schumacher, Stefan","first_name":"Stefan"},{"first_name":"Ian","full_name":"Galbraith, Ian","last_name":"Galbraith"},{"first_name":"Arvydas","full_name":"Ruseckas, Arvydas","last_name":"Ruseckas"},{"first_name":"Graham A.","full_name":"Turnbull, Graham A.","last_name":"Turnbull"},{"first_name":"Ifor D. W.","last_name":"Samuel","full_name":"Samuel, Ifor D. W."}],"date_created":"2020-02-10T11:19:35Z","date_updated":"2025-12-16T08:02:49Z","citation":{"bibtex":"@article{Schumacher_Galbraith_Ruseckas_Turnbull_Samuel_2010, title={Dynamics of photoexcitation and stimulated optical emission in conjugated polymers: A multiscale quantum-chemistry and Maxwell-Bloch-equations approach}, DOI={<a href=\"https://doi.org/10.1103/physrevb.81.245407\">10.1103/physrevb.81.245407</a>}, journal={Physical Review B}, author={Schumacher, Stefan and Galbraith, Ian and Ruseckas, Arvydas and Turnbull, Graham A. and Samuel, Ifor D. W.}, year={2010} }","mla":"Schumacher, Stefan, et al. “Dynamics of Photoexcitation and Stimulated Optical Emission in Conjugated Polymers: A Multiscale Quantum-Chemistry and Maxwell-Bloch-Equations Approach.” <i>Physical Review B</i>, 2010, doi:<a href=\"https://doi.org/10.1103/physrevb.81.245407\">10.1103/physrevb.81.245407</a>.","short":"S. Schumacher, I. Galbraith, A. Ruseckas, G.A. Turnbull, I.D.W. Samuel, Physical Review B (2010).","apa":"Schumacher, S., Galbraith, I., Ruseckas, A., Turnbull, G. A., &#38; Samuel, I. D. W. (2010). Dynamics of photoexcitation and stimulated optical emission in conjugated polymers: A multiscale quantum-chemistry and Maxwell-Bloch-equations approach. <i>Physical Review B</i>. <a href=\"https://doi.org/10.1103/physrevb.81.245407\">https://doi.org/10.1103/physrevb.81.245407</a>","chicago":"Schumacher, Stefan, Ian Galbraith, Arvydas Ruseckas, Graham A. Turnbull, and Ifor D. W. Samuel. “Dynamics of Photoexcitation and Stimulated Optical Emission in Conjugated Polymers: A Multiscale Quantum-Chemistry and Maxwell-Bloch-Equations Approach.” <i>Physical Review B</i>, 2010. <a href=\"https://doi.org/10.1103/physrevb.81.245407\">https://doi.org/10.1103/physrevb.81.245407</a>.","ieee":"S. Schumacher, I. Galbraith, A. Ruseckas, G. A. Turnbull, and I. D. W. Samuel, “Dynamics of photoexcitation and stimulated optical emission in conjugated polymers: A multiscale quantum-chemistry and Maxwell-Bloch-equations approach,” <i>Physical Review B</i>, 2010, doi: <a href=\"https://doi.org/10.1103/physrevb.81.245407\">10.1103/physrevb.81.245407</a>.","ama":"Schumacher S, Galbraith I, Ruseckas A, Turnbull GA, Samuel IDW. Dynamics of photoexcitation and stimulated optical emission in conjugated polymers: A multiscale quantum-chemistry and Maxwell-Bloch-equations approach. <i>Physical Review B</i>. Published online 2010. doi:<a href=\"https://doi.org/10.1103/physrevb.81.245407\">10.1103/physrevb.81.245407</a>"},"year":"2010","publication_status":"published","publication_identifier":{"issn":["1098-0121","1550-235X"]},"language":[{"iso":"eng"}],"user_id":"16199","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"_id":"15846","status":"public","type":"journal_article","publication":"Physical Review B"},{"abstract":[{"text":"The structural and electronic properties of strained silicon are investigated quantitatively with ab initio computational methods. For this purpose we combine densityfunctional theory within the local‐density approximation and the GW approximation for the electronic self‐energy. From the variation of the total energy as a function of applied strain we obtain the elastic constants, Poisson ratios and related structural parameters, taking a possible internal relaxation fully into account. For biaxial tensile strain in the (001) and (111) planes we then investigate the effects on the electronic band structure. These strain configurations occur in epitaxial silicon films grown on SiGe templates along different crystallographic directions.\r\nThe tetragonal deformation resulting from (001) strain induces a valley splitting that removes the sixfold degeneracy of the conduction‐band minimum. Furthermore, strain in any direction causes the band structure to warp. We present quantitative results for the electron effective mass, derived from the curvature of the conduction band, as a function of strain and discuss the implications for the mobility of the charge carriers. The inclusion of proper self‐energy corrections within the GW approximation in our work not only yields band gaps in much better agreement with experimental measurements than the localdensity approximation, but also predicts slightly larger electron effective masses.","lang":"eng"}],"file":[{"relation":"main_file","content_type":"application/pdf","description":"© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim","file_size":118792,"title":"Electronic structure and effective masses in strained silicon","file_id":"18582","file_name":"pssc.200982470.pdf","access_level":"closed","date_updated":"2020-08-30T15:13:32Z","date_created":"2020-08-28T14:38:30Z","creator":"schindlm"}],"publication":"Physica Status Solidi C","ddc":["530"],"language":[{"iso":"eng"}],"external_id":{"isi":["000284313000081"]},"year":"2010","quality_controlled":"1","issue":"2","title":"Electronic structure and effective masses in strained silicon","publisher":"Wiley-VCH","date_created":"2020-08-28T11:35:38Z","status":"public","type":"journal_article","isi":"1","article_type":"original","file_date_updated":"2020-08-30T15:13:32Z","_id":"18562","department":[{"_id":"296"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"user_id":"16199","page":"460-463","intvolume":"         7","citation":{"ama":"Bouhassoune M, Schindlmayr A. Electronic structure and effective masses in strained silicon. <i>Physica Status Solidi C</i>. 2010;7(2):460-463. doi:<a href=\"https://doi.org/10.1002/pssc.200982470\">10.1002/pssc.200982470</a>","chicago":"Bouhassoune, Mohammed, and Arno Schindlmayr. “Electronic Structure and Effective Masses in Strained Silicon.” <i>Physica Status Solidi C</i> 7, no. 2 (2010): 460–63. <a href=\"https://doi.org/10.1002/pssc.200982470\">https://doi.org/10.1002/pssc.200982470</a>.","ieee":"M. Bouhassoune and A. Schindlmayr, “Electronic structure and effective masses in strained silicon,” <i>Physica Status Solidi C</i>, vol. 7, no. 2, pp. 460–463, 2010, doi: <a href=\"https://doi.org/10.1002/pssc.200982470\">10.1002/pssc.200982470</a>.","apa":"Bouhassoune, M., &#38; Schindlmayr, A. (2010). Electronic structure and effective masses in strained silicon. <i>Physica Status Solidi C</i>, <i>7</i>(2), 460–463. <a href=\"https://doi.org/10.1002/pssc.200982470\">https://doi.org/10.1002/pssc.200982470</a>","mla":"Bouhassoune, Mohammed, and Arno Schindlmayr. “Electronic Structure and Effective Masses in Strained Silicon.” <i>Physica Status Solidi C</i>, vol. 7, no. 2, Wiley-VCH, 2010, pp. 460–63, doi:<a href=\"https://doi.org/10.1002/pssc.200982470\">10.1002/pssc.200982470</a>.","short":"M. Bouhassoune, A. Schindlmayr, Physica Status Solidi C 7 (2010) 460–463.","bibtex":"@article{Bouhassoune_Schindlmayr_2010, title={Electronic structure and effective masses in strained silicon}, volume={7}, DOI={<a href=\"https://doi.org/10.1002/pssc.200982470\">10.1002/pssc.200982470</a>}, number={2}, journal={Physica Status Solidi C}, publisher={Wiley-VCH}, author={Bouhassoune, Mohammed and Schindlmayr, Arno}, year={2010}, pages={460–463} }"},"has_accepted_license":"1","publication_identifier":{"eissn":["1610-1642"],"issn":["1862-6351"]},"publication_status":"published","conference":{"end_date":"2009-07-10","location":"Weimar","name":"12th International Conference on the Formation of Semiconductor Interfaces","start_date":"2009-07-05"},"doi":"10.1002/pssc.200982470","date_updated":"2025-12-16T08:10:05Z","volume":7,"author":[{"first_name":"Mohammed","full_name":"Bouhassoune, Mohammed","last_name":"Bouhassoune"},{"full_name":"Schindlmayr, Arno","id":"458","last_name":"Schindlmayr","orcid":"0000-0002-4855-071X","first_name":"Arno"}]},{"citation":{"ama":"Schindlmayr A, Friedrich C, Şaşıoğlu E, Blügel S. First-principles calculation of electronic excitations in solids with SPEX. In: Dolg FM, ed. <i>Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry and Physics</i>. Vol 3. Progress in Physical Chemistry. Oldenbourg; 2010:67-78. doi:<a href=\"https://doi.org/10.1524/9783486711639.67\">10.1524/9783486711639.67</a>","chicago":"Schindlmayr, Arno, Christoph Friedrich, Ersoy Şaşıoğlu, and Stefan Blügel. “First-Principles Calculation of Electronic Excitations in Solids with SPEX.” In <i>Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry and Physics</i>, edited by Franz Michael Dolg, 3:67–78. Progress in Physical Chemistry. München: Oldenbourg, 2010. <a href=\"https://doi.org/10.1524/9783486711639.67\">https://doi.org/10.1524/9783486711639.67</a>.","ieee":"A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, and S. Blügel, “First-principles calculation of electronic excitations in solids with SPEX,” in <i>Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry and Physics</i>, vol. 3, F. M. Dolg, Ed. München: Oldenbourg, 2010, pp. 67–78.","apa":"Schindlmayr, A., Friedrich, C., Şaşıoğlu, E., &#38; Blügel, S. (2010). First-principles calculation of electronic excitations in solids with SPEX. In F. M. Dolg (Ed.), <i>Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry and Physics</i> (Vol. 3, pp. 67–78). Oldenbourg. <a href=\"https://doi.org/10.1524/9783486711639.67\">https://doi.org/10.1524/9783486711639.67</a>","bibtex":"@inbook{Schindlmayr_Friedrich_Şaşıoğlu_Blügel_2010, place={München}, series={Progress in Physical Chemistry}, title={First-principles calculation of electronic excitations in solids with SPEX}, volume={3}, DOI={<a href=\"https://doi.org/10.1524/9783486711639.67\">10.1524/9783486711639.67</a>}, booktitle={Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry and Physics}, publisher={Oldenbourg}, author={Schindlmayr, Arno and Friedrich, Christoph and Şaşıoğlu, Ersoy and Blügel, Stefan}, editor={Dolg, Franz Michael}, year={2010}, pages={67–78}, collection={Progress in Physical Chemistry} }","mla":"Schindlmayr, Arno, et al. “First-Principles Calculation of Electronic Excitations in Solids with SPEX.” <i>Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry and Physics</i>, edited by Franz Michael Dolg, vol. 3, Oldenbourg, 2010, pp. 67–78, doi:<a href=\"https://doi.org/10.1524/9783486711639.67\">10.1524/9783486711639.67</a>.","short":"A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, S. Blügel, in: F.M. Dolg (Ed.), Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry and Physics, Oldenbourg, München, 2010, pp. 67–78."},"intvolume":"         3","page":"67-78","place":"München","publication_status":"published","publication_identifier":{"isbn":["978-3-486-59827-8"],"eisbn":["978-3-486-71163-9"]},"doi":"10.1524/9783486711639.67","author":[{"id":"458","full_name":"Schindlmayr, Arno","orcid":"0000-0002-4855-071X","last_name":"Schindlmayr","first_name":"Arno"},{"full_name":"Friedrich, Christoph","last_name":"Friedrich","first_name":"Christoph"},{"first_name":"Ersoy","last_name":"Şaşıoğlu","full_name":"Şaşıoğlu, Ersoy"},{"last_name":"Blügel","full_name":"Blügel, Stefan","first_name":"Stefan"}],"volume":3,"date_updated":"2025-12-16T08:09:01Z","status":"public","editor":[{"last_name":"Dolg","full_name":"Dolg, Franz Michael","first_name":"Franz Michael"}],"type":"book_chapter","user_id":"16199","series_title":"Progress in Physical Chemistry","department":[{"_id":"296"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"_id":"18549","year":"2010","quality_controlled":"1","title":"First-principles calculation of electronic excitations in solids with SPEX","date_created":"2020-08-28T11:03:04Z","publisher":"Oldenbourg","abstract":[{"text":"We describe the software package SPEX, which allows first-principles calculations of quasiparticle and collective electronic excitations in solids using techniques from many-body perturbation theory. The implementation is based on the full-potential linearized augmented-plane-wave (FLAPW) method, which treats core and valence electrons on an equal footing and can be applied to a wide range of materials, including transition metals and rare earths. After a discussion of essential features that contribute to the high numerical efficiency of the code, we present illustrative results for quasiparticle band structures calculated within the GW approximation for the electronic self-energy, electron-energy-loss spectra with inter- and intraband transitions as well as local-field effects, and spin-wave spectra of itinerant ferromagnets. In all cases the inclusion of many-body correlation terms leads to very good quantitative agreement with experimental spectroscopies.","lang":"eng"}],"publication":"Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry and Physics","language":[{"iso":"eng"}]},{"title":"Wannier-function approach to spin excitations in solids","publisher":"American Physical Society","date_created":"2020-08-28T11:31:26Z","year":"2010","quality_controlled":"1","issue":"5","ddc":["530"],"language":[{"iso":"eng"}],"external_id":{"isi":["000274998000084"],"arxiv":["1002.4897"]},"abstract":[{"text":"We present a computational scheme to study spin excitations in magnetic materials from first principles. The central quantity is the transverse spin susceptibility, from which the complete excitation spectrum, including single-particle spin-flip Stoner excitations and collective spin-wave modes, can be obtained. The susceptibility is derived from many-body perturbation theory and includes dynamic correlation through a summation over ladder diagrams that describe the coupling of electrons and holes with opposite spins. In contrast to earlier studies, we do not use a model potential with adjustable parameters for the electron-hole interaction but employ the random-phase approximation. To reduce the numerical cost for the calculation of the four-point scattering matrix we perform a projection onto maximally localized Wannier functions, which allows us to truncate the matrix efficiently by exploiting the short spatial range of electronic correlation in the partially filled d or f orbitals. Our implementation is based on the full-potential linearized augmented-plane-wave method. Starting from a ground-state calculation within the local-spin-density approximation (LSDA), we first analyze the matrix elements of the screened Coulomb potential in the Wannier basis for the 3d transition-metal series. In particular, we discuss the differences between a constrained nonmagnetic and a proper spin-polarized treatment for the ferromagnets Fe, Co, and Ni. The spectrum of single-particle and collective spin excitations in fcc Ni is then studied in detail. The calculated spin-wave dispersion is in good overall agreement with experimental data and contains both an acoustic and an optical branch for intermediate wave vectors along the [100] direction. In addition, we find evidence for a similar double-peak structure in the spectral function along the [111] direction. To investigate the influence of static correlation we finally consider LSDA+U as an alternative starting point and show that, together with an improved description of the Fermi surface, it yields a more accurate quantitative value for the spin-wave stiffness constant, which is overestimated in the LSDA.","lang":"eng"}],"file":[{"creator":"schindlm","date_created":"2020-08-28T11:33:17Z","date_updated":"2020-08-30T15:06:10Z","file_name":"PhysRevB.81.054434.pdf","file_id":"18561","access_level":"open_access","title":"Wannier-function approach to spin excitations in solids","file_size":711970,"description":"© 2010 American Physical Society","content_type":"application/pdf","relation":"main_file"}],"publication":"Physical Review B","doi":"10.1103/PhysRevB.81.054434","date_updated":"2025-12-16T11:09:51Z","oa":"1","volume":81,"author":[{"last_name":"Şaşıoğlu","full_name":"Şaşıoğlu, Ersoy","first_name":"Ersoy"},{"first_name":"Arno","id":"458","full_name":"Schindlmayr, Arno","last_name":"Schindlmayr","orcid":"0000-0002-4855-071X"},{"last_name":"Friedrich","full_name":"Friedrich, Christoph","first_name":"Christoph"},{"full_name":"Freimuth, Frank","last_name":"Freimuth","first_name":"Frank"},{"last_name":"Blügel","full_name":"Blügel, Stefan","first_name":"Stefan"}],"intvolume":"        81","citation":{"apa":"Şaşıoğlu, E., Schindlmayr, A., Friedrich, C., Freimuth, F., &#38; Blügel, S. (2010). Wannier-function approach to spin excitations in solids. <i>Physical Review B</i>, <i>81</i>(5), Article 054434. <a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">https://doi.org/10.1103/PhysRevB.81.054434</a>","mla":"Şaşıoğlu, Ersoy, et al. “Wannier-Function Approach to Spin Excitations in Solids.” <i>Physical Review B</i>, vol. 81, no. 5, 054434, American Physical Society, 2010, doi:<a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">10.1103/PhysRevB.81.054434</a>.","bibtex":"@article{Şaşıoğlu_Schindlmayr_Friedrich_Freimuth_Blügel_2010, title={Wannier-function approach to spin excitations in solids}, volume={81}, DOI={<a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">10.1103/PhysRevB.81.054434</a>}, number={5054434}, journal={Physical Review B}, publisher={American Physical Society}, author={Şaşıoğlu, Ersoy and Schindlmayr, Arno and Friedrich, Christoph and Freimuth, Frank and Blügel, Stefan}, year={2010} }","short":"E. Şaşıoğlu, A. Schindlmayr, C. Friedrich, F. Freimuth, S. Blügel, Physical Review B 81 (2010).","ieee":"E. Şaşıoğlu, A. Schindlmayr, C. Friedrich, F. Freimuth, and S. Blügel, “Wannier-function approach to spin excitations in solids,” <i>Physical Review B</i>, vol. 81, no. 5, Art. no. 054434, 2010, doi: <a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">10.1103/PhysRevB.81.054434</a>.","chicago":"Şaşıoğlu, Ersoy, Arno Schindlmayr, Christoph Friedrich, Frank Freimuth, and Stefan Blügel. “Wannier-Function Approach to Spin Excitations in Solids.” <i>Physical Review B</i> 81, no. 5 (2010). <a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">https://doi.org/10.1103/PhysRevB.81.054434</a>.","ama":"Şaşıoğlu E, Schindlmayr A, Friedrich C, Freimuth F, Blügel S. Wannier-function approach to spin excitations in solids. <i>Physical Review B</i>. 2010;81(5). doi:<a href=\"https://doi.org/10.1103/PhysRevB.81.054434\">10.1103/PhysRevB.81.054434</a>"},"has_accepted_license":"1","publication_identifier":{"issn":["1098-0121"],"eissn":["1550-235X"]},"publication_status":"published","article_type":"original","article_number":"054434","isi":"1","file_date_updated":"2020-08-30T15:06:10Z","_id":"18560","department":[{"_id":"296"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"user_id":"16199","status":"public","type":"journal_article"},{"abstract":[{"lang":"eng","text":"We describe the software package SPEX, which allows first-principles calculations of quasiparticle and collective electronic excitations in solids using techniques from many-body perturbation theory. The implementation is based on the full-potential linearized augmented-plane-wave (FLAPW) method, which treats core and valence electrons on an equal footing and can be applied to a wide range of materials, including transition metals and rare earths. After a discussion of essential features that contribute to the high numerical efficiency of the code, we present illustrative results for quasiparticle band structures calculated within the GW approximation for the electronic self-energy, electron-energy-loss spectra with inter- and intraband transitions as well as local-field effects, and spin-wave spectra of itinerant ferromagnets. In all cases the inclusion of many-body correlation terms leads to very good quantitative agreement with experimental spectroscopies."}],"file":[{"content_type":"application/pdf","relation":"main_file","creator":"schindlm","date_created":"2020-08-28T14:34:10Z","date_updated":"2020-08-30T15:04:39Z","file_name":"zpch.2010.6110.pdf","access_level":"closed","file_id":"18581","title":"First-principles calculation of electronic excitations in solids with SPEX","description":"© 2010 Oldenbourg Wissenschaftsverlag, München","file_size":912086}],"publication":"Zeitschrift für Physikalische Chemie","ddc":["530"],"language":[{"iso":"eng"}],"external_id":{"isi":["000281124800006"],"arxiv":["1110.1596"]},"year":"2010","quality_controlled":"1","issue":"3-4","title":"First-principles calculation of electronic excitations in solids with SPEX","publisher":"Oldenbourg","date_created":"2020-08-28T11:20:50Z","status":"public","type":"journal_article","article_type":"original","isi":"1","file_date_updated":"2020-08-30T15:04:39Z","_id":"18557","user_id":"16199","department":[{"_id":"296"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"citation":{"short":"A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, S. Blügel, Zeitschrift Für Physikalische Chemie 224 (2010) 357–368.","bibtex":"@article{Schindlmayr_Friedrich_Şaşıoğlu_Blügel_2010, title={First-principles calculation of electronic excitations in solids with SPEX}, volume={224}, DOI={<a href=\"https://doi.org/10.1524/zpch.2010.6110\">10.1524/zpch.2010.6110</a>}, number={3–4}, journal={Zeitschrift für Physikalische Chemie}, publisher={Oldenbourg}, author={Schindlmayr, Arno and Friedrich, Christoph and Şaşıoğlu, Ersoy and Blügel, Stefan}, year={2010}, pages={357–368} }","mla":"Schindlmayr, Arno, et al. “First-Principles Calculation of Electronic Excitations in Solids with SPEX.” <i>Zeitschrift Für Physikalische Chemie</i>, vol. 224, no. 3–4, Oldenbourg, 2010, pp. 357–68, doi:<a href=\"https://doi.org/10.1524/zpch.2010.6110\">10.1524/zpch.2010.6110</a>.","apa":"Schindlmayr, A., Friedrich, C., Şaşıoğlu, E., &#38; Blügel, S. (2010). First-principles calculation of electronic excitations in solids with SPEX. <i>Zeitschrift Für Physikalische Chemie</i>, <i>224</i>(3–4), 357–368. <a href=\"https://doi.org/10.1524/zpch.2010.6110\">https://doi.org/10.1524/zpch.2010.6110</a>","ieee":"A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, and S. Blügel, “First-principles calculation of electronic excitations in solids with SPEX,” <i>Zeitschrift für Physikalische Chemie</i>, vol. 224, no. 3–4, pp. 357–368, 2010, doi: <a href=\"https://doi.org/10.1524/zpch.2010.6110\">10.1524/zpch.2010.6110</a>.","chicago":"Schindlmayr, Arno, Christoph Friedrich, Ersoy Şaşıoğlu, and Stefan Blügel. “First-Principles Calculation of Electronic Excitations in Solids with SPEX.” <i>Zeitschrift Für Physikalische Chemie</i> 224, no. 3–4 (2010): 357–68. <a href=\"https://doi.org/10.1524/zpch.2010.6110\">https://doi.org/10.1524/zpch.2010.6110</a>.","ama":"Schindlmayr A, Friedrich C, Şaşıoğlu E, Blügel S. First-principles calculation of electronic excitations in solids with SPEX. <i>Zeitschrift für Physikalische Chemie</i>. 2010;224(3-4):357-368. doi:<a href=\"https://doi.org/10.1524/zpch.2010.6110\">10.1524/zpch.2010.6110</a>"},"intvolume":"       224","page":"357-368","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0942-9352"],"eissn":["2196-7156"]},"doi":"10.1524/zpch.2010.6110","date_updated":"2025-12-16T11:09:01Z","author":[{"last_name":"Schindlmayr","orcid":"0000-0002-4855-071X","id":"458","full_name":"Schindlmayr, Arno","first_name":"Arno"},{"last_name":"Friedrich","full_name":"Friedrich, Christoph","first_name":"Christoph"},{"first_name":"Ersoy","last_name":"Şaşıoğlu","full_name":"Şaşıoğlu, Ersoy"},{"full_name":"Blügel, Stefan","last_name":"Blügel","first_name":"Stefan"}],"volume":224},{"date_updated":"2025-12-16T11:24:45Z","author":[{"first_name":"I.","last_name":"Kuznetsova","full_name":"Kuznetsova, I."},{"first_name":"N.","last_name":"Gőgh","full_name":"Gőgh, N."},{"orcid":"0000-0001-7059-9862","last_name":"Förstner","id":"158","full_name":"Förstner, Jens","first_name":"Jens"},{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten"},{"full_name":"Cundiff, S. T.","last_name":"Cundiff","first_name":"S. T."},{"full_name":"Varga, I.","last_name":"Varga","first_name":"I."},{"first_name":"P.","last_name":"Thomas","full_name":"Thomas, P."}],"volume":81,"doi":"10.1103/physrevb.81.075307","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["1098-0121","1550-235X"]},"citation":{"apa":"Kuznetsova, I., Gőgh, N., Förstner, J., Meier, T., Cundiff, S. T., Varga, I., &#38; Thomas, P. (2010). Modeling excitonic line shapes in weakly disordered semiconductor nanostructures. <i>Physical Review B</i>, <i>81</i>(7), Article 075307. <a href=\"https://doi.org/10.1103/physrevb.81.075307\">https://doi.org/10.1103/physrevb.81.075307</a>","short":"I. Kuznetsova, N. Gőgh, J. Förstner, T. Meier, S.T. Cundiff, I. Varga, P. Thomas, Physical Review B 81 (2010).","bibtex":"@article{Kuznetsova_Gőgh_Förstner_Meier_Cundiff_Varga_Thomas_2010, title={Modeling excitonic line shapes in weakly disordered semiconductor nanostructures}, volume={81}, DOI={<a href=\"https://doi.org/10.1103/physrevb.81.075307\">10.1103/physrevb.81.075307</a>}, number={7075307}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Kuznetsova, I. and Gőgh, N. and Förstner, Jens and Meier, Torsten and Cundiff, S. T. and Varga, I. and Thomas, P.}, year={2010} }","mla":"Kuznetsova, I., et al. “Modeling Excitonic Line Shapes in Weakly Disordered Semiconductor Nanostructures.” <i>Physical Review B</i>, vol. 81, no. 7, 075307, American Physical Society (APS), 2010, doi:<a href=\"https://doi.org/10.1103/physrevb.81.075307\">10.1103/physrevb.81.075307</a>.","ama":"Kuznetsova I, Gőgh N, Förstner J, et al. Modeling excitonic line shapes in weakly disordered semiconductor nanostructures. <i>Physical Review B</i>. 2010;81(7). doi:<a href=\"https://doi.org/10.1103/physrevb.81.075307\">10.1103/physrevb.81.075307</a>","chicago":"Kuznetsova, I., N. Gőgh, Jens Förstner, Torsten Meier, S. T. Cundiff, I. Varga, and P. Thomas. “Modeling Excitonic Line Shapes in Weakly Disordered Semiconductor Nanostructures.” <i>Physical Review B</i> 81, no. 7 (2010). <a href=\"https://doi.org/10.1103/physrevb.81.075307\">https://doi.org/10.1103/physrevb.81.075307</a>.","ieee":"I. Kuznetsova <i>et al.</i>, “Modeling excitonic line shapes in weakly disordered semiconductor nanostructures,” <i>Physical Review B</i>, vol. 81, no. 7, Art. no. 075307, 2010, doi: <a href=\"https://doi.org/10.1103/physrevb.81.075307\">10.1103/physrevb.81.075307</a>."},"intvolume":"        81","_id":"4177","user_id":"16199","department":[{"_id":"15"},{"_id":"293"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"34"},{"_id":"61"}],"article_number":"075307","article_type":"original","file_date_updated":"2018-08-28T09:13:01Z","type":"journal_article","status":"public","publisher":"American Physical Society (APS)","date_created":"2018-08-28T09:09:37Z","title":"Modeling excitonic line shapes in weakly disordered semiconductor nanostructures","issue":"7","year":"2010","ddc":["530"],"keyword":["tet_topic_qw"],"language":[{"iso":"eng"}],"publication":"Physical Review B","abstract":[{"text":"Excitonic spectra of weakly disordered semiconductor heterostructures are simulated on the basis of a\r\none-dimensional tight-binding model. The influence of the length scale of weak disorder in quantum wells on\r\nthe redshift of the excitonic peak and its linewidth is studied. By calculating two-dimensional Fouriertransform\r\nspectra we are able to determine the contribution of disorder to inhomogeneous and also to homogeneous\r\nbroadenings separately. This disorder-induced dephasing is related to a Fano-type coupling and leads\r\nto contributions to the homogeneous linewidth that depends on energy within the inhomogeneously broadened\r\nline. The model includes heavy- and light-hole excitons and yields smaller inhomogeneous broadening for the\r\nlight-hole exciton if compared to the heavy-hole exciton, which agrees qualitatively with the experiment.","lang":"eng"}],"file":[{"date_created":"2018-08-28T09:13:01Z","creator":"hclaudia","date_updated":"2018-08-28T09:13:01Z","file_name":"2010 Kuznetsova,Gögh,Förstner,Meier T,Cundiff, Varga,Thomas_Modeling excitonic line shapes in weakly disordered semiconductor nanostructures.pdf","access_level":"closed","file_id":"4178","file_size":713758,"content_type":"application/pdf","relation":"main_file","success":1}]},{"type":"journal_article","status":"public","_id":"4125","department":[{"_id":"15"},{"_id":"230"},{"_id":"293"},{"_id":"287"},{"_id":"35"},{"_id":"170"},{"_id":"35"},{"_id":"34"},{"_id":"61"}],"user_id":"16199","article_type":"original","file_date_updated":"2018-08-27T10:21:38Z","publication_identifier":{"issn":["1569-4410"]},"has_accepted_license":"1","publication_status":"published","intvolume":"         8","page":"273-277","citation":{"chicago":"Declair, S., Cedrik Meier, Torsten Meier, and Jens Förstner. “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in an Anisotropic Environment.” <i>Photonics and Nanostructures - Fundamentals and Applications</i> 8, no. 4 (2010): 273–77. <a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">https://doi.org/10.1016/j.photonics.2010.03.002</a>.","ieee":"S. Declair, C. Meier, T. Meier, and J. Förstner, “Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment,” <i>Photonics and Nanostructures - Fundamentals and Applications</i>, vol. 8, no. 4, pp. 273–277, 2010, doi: <a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">10.1016/j.photonics.2010.03.002</a>.","ama":"Declair S, Meier C, Meier T, Förstner J. Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment. <i>Photonics and Nanostructures - Fundamentals and Applications</i>. 2010;8(4):273-277. doi:<a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">10.1016/j.photonics.2010.03.002</a>","apa":"Declair, S., Meier, C., Meier, T., &#38; Förstner, J. (2010). Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment. <i>Photonics and Nanostructures - Fundamentals and Applications</i>, <i>8</i>(4), 273–277. <a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">https://doi.org/10.1016/j.photonics.2010.03.002</a>","short":"S. Declair, C. Meier, T. Meier, J. Förstner, Photonics and Nanostructures - Fundamentals and Applications 8 (2010) 273–277.","bibtex":"@article{Declair_Meier_Meier_Förstner_2010, title={Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment}, volume={8}, DOI={<a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">10.1016/j.photonics.2010.03.002</a>}, number={4}, journal={Photonics and Nanostructures - Fundamentals and Applications}, publisher={Elsevier BV}, author={Declair, S. and Meier, Cedrik and Meier, Torsten and Förstner, Jens}, year={2010}, pages={273–277} }","mla":"Declair, S., et al. “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in an Anisotropic Environment.” <i>Photonics and Nanostructures - Fundamentals and Applications</i>, vol. 8, no. 4, Elsevier BV, 2010, pp. 273–77, doi:<a href=\"https://doi.org/10.1016/j.photonics.2010.03.002\">10.1016/j.photonics.2010.03.002</a>."},"date_updated":"2025-12-16T11:23:48Z","volume":8,"author":[{"first_name":"S.","full_name":"Declair, S.","last_name":"Declair"},{"first_name":"Cedrik","full_name":"Meier, Cedrik","id":"20798","last_name":"Meier","orcid":"https://orcid.org/0000-0002-3787-3572"},{"id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","first_name":"Torsten"},{"last_name":"Förstner","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","id":"158","first_name":"Jens"}],"doi":"10.1016/j.photonics.2010.03.002","publication":"Photonics and Nanostructures - Fundamentals and Applications","abstract":[{"text":"We numerically investigate the behavior of Whispering Gallery Modes (WGMs) in circularly shaped resonators like microdisks, with diameters in the range of optical vacuum wavelengths. The microdisk is embedded in an uniaxial anisotropic dielectric environment. By changing the optical anisotropy, one obtains spectral tunability of the optical modes. The degree of tunability strongly depends on the radial (azimuthal) mode order M (N). As the modes approach each other spectrally, anticrossing is observed, leading to a rearrangement of the optical states.","lang":"eng"}],"file":[{"content_type":"application/pdf","relation":"main_file","success":1,"creator":"hclaudia","date_created":"2018-08-27T10:21:38Z","date_updated":"2018-08-27T10:21:38Z","access_level":"closed","file_id":"4126","file_name":"2010 Declair,Meier C, Meier T, Förstner_Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment.pdf","file_size":304758}],"keyword":["tet_topic_microdisk"],"ddc":["530"],"language":[{"iso":"eng"}],"issue":"4","year":"2010","publisher":"Elsevier BV","date_created":"2018-08-27T10:19:59Z","title":"Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment"},{"department":[{"_id":"15"},{"_id":"230"},{"_id":"35"},{"_id":"170"},{"_id":"293"},{"_id":"35"}],"user_id":"16199","_id":"4547","article_type":"original","type":"journal_article","status":"public","volume":4,"author":[{"full_name":"Michaelis de Vasconcellos, S.","last_name":"Michaelis de Vasconcellos","first_name":"S."},{"first_name":"S.","last_name":"Gordon","full_name":"Gordon, S."},{"full_name":"Bichler, M.","last_name":"Bichler","first_name":"M."},{"first_name":"Torsten","full_name":"Meier, Torsten","id":"344","last_name":"Meier","orcid":"0000-0001-8864-2072"},{"orcid":"0000-0002-5190-0944","last_name":"Zrenner","full_name":"Zrenner, Artur","id":"606","first_name":"Artur"}],"date_updated":"2025-12-16T11:22:52Z","doi":"10.1038/nphoton.2010.124","publication_identifier":{"issn":["1749-4885","1749-4893"]},"publication_status":"published","intvolume":"         4","page":"545-548","citation":{"apa":"Michaelis de Vasconcellos, S., Gordon, S., Bichler, M., Meier, T., &#38; Zrenner, A. (2010). Coherent control of a single exciton qubit by optoelectronic manipulation. <i>Nature Photonics</i>, <i>4</i>(8), 545–548. <a href=\"https://doi.org/10.1038/nphoton.2010.124\">https://doi.org/10.1038/nphoton.2010.124</a>","mla":"Michaelis de Vasconcellos, S., et al. “Coherent Control of a Single Exciton Qubit by Optoelectronic Manipulation.” <i>Nature Photonics</i>, vol. 4, no. 8, Springer Nature, 2010, pp. 545–48, doi:<a href=\"https://doi.org/10.1038/nphoton.2010.124\">10.1038/nphoton.2010.124</a>.","bibtex":"@article{Michaelis de Vasconcellos_Gordon_Bichler_Meier_Zrenner_2010, title={Coherent control of a single exciton qubit by optoelectronic manipulation}, volume={4}, DOI={<a href=\"https://doi.org/10.1038/nphoton.2010.124\">10.1038/nphoton.2010.124</a>}, number={8}, journal={Nature Photonics}, publisher={Springer Nature}, author={Michaelis de Vasconcellos, S. and Gordon, S. and Bichler, M. and Meier, Torsten and Zrenner, Artur}, year={2010}, pages={545–548} }","short":"S. Michaelis de Vasconcellos, S. Gordon, M. Bichler, T. Meier, A. Zrenner, Nature Photonics 4 (2010) 545–548.","ama":"Michaelis de Vasconcellos S, Gordon S, Bichler M, Meier T, Zrenner A. Coherent control of a single exciton qubit by optoelectronic manipulation. <i>Nature Photonics</i>. 2010;4(8):545-548. doi:<a href=\"https://doi.org/10.1038/nphoton.2010.124\">10.1038/nphoton.2010.124</a>","chicago":"Michaelis de Vasconcellos, S., S. Gordon, M. Bichler, Torsten Meier, and Artur Zrenner. “Coherent Control of a Single Exciton Qubit by Optoelectronic Manipulation.” <i>Nature Photonics</i> 4, no. 8 (2010): 545–48. <a href=\"https://doi.org/10.1038/nphoton.2010.124\">https://doi.org/10.1038/nphoton.2010.124</a>.","ieee":"S. Michaelis de Vasconcellos, S. Gordon, M. Bichler, T. Meier, and A. Zrenner, “Coherent control of a single exciton qubit by optoelectronic manipulation,” <i>Nature Photonics</i>, vol. 4, no. 8, pp. 545–548, 2010, doi: <a href=\"https://doi.org/10.1038/nphoton.2010.124\">10.1038/nphoton.2010.124</a>."},"language":[{"iso":"eng"}],"publication":"Nature Photonics","abstract":[{"lang":"eng","text":"The coherent state manipulation of single quantum systems is a fundamental requirement for the implementation of quantum information processors. Exciton qubits are of particular interest for coherent optoelectronic applications, in particular due to their excellent coupling to photons. Until now, coherent manipulations of exciton qubits in semiconductor quantum dots have been performed predominantly by pulsed laser fields. Coherent control of the population of excitonic states with a single laser pulse, observed by Rabi oscillations, has been demonstrated by several groups using different techniques1,2,3. By using two laser pulses, more general state control can be achieved4, and coupling of two excitons has been reported5,6. Here, we present a conceptually new approach for implementing the coherent control of an exciton two-level system (qubit) by means of a time-dependent electric interaction. The new scheme makes use of an optical clock signal and a synchronous electric gate signal, which controls the coherent manipulation."}],"date_created":"2018-09-20T12:19:52Z","publisher":"Springer Nature","title":"Coherent control of a single exciton qubit by optoelectronic manipulation","issue":"8","year":"2010"},{"article_type":"original","file_date_updated":"2018-08-27T10:06:57Z","_id":"4123","department":[{"_id":"15"},{"_id":"230"},{"_id":"2"},{"_id":"293"},{"_id":"292"},{"_id":"35"},{"_id":"287"},{"_id":"313"},{"_id":"170"}],"user_id":"16199","status":"public","type":"journal_article","doi":"10.1016/j.physe.2009.12.051","date_updated":"2025-12-16T11:32:03Z","volume":42,"author":[{"last_name":"Piegdon","full_name":"Piegdon, Karoline A.","first_name":"Karoline A."},{"last_name":"Offer","full_name":"Offer, Matthias","first_name":"Matthias"},{"first_name":"Axel","full_name":"Lorke, Axel","last_name":"Lorke"},{"full_name":"Urbanski, Martin","last_name":"Urbanski","first_name":"Martin"},{"last_name":"Hoischen","full_name":"Hoischen, Andreas","first_name":"Andreas"},{"id":"254","full_name":"Kitzerow, Heinz-Siegfried","last_name":"Kitzerow","first_name":"Heinz-Siegfried"},{"first_name":"Stefan","last_name":"Declair","full_name":"Declair, Stefan"},{"orcid":"0000-0001-7059-9862","last_name":"Förstner","id":"158","full_name":"Förstner, Jens","first_name":"Jens"},{"orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten","first_name":"Torsten"},{"last_name":"Reuter","id":"37763","full_name":"Reuter, Dirk","first_name":"Dirk"},{"last_name":"Wieck","full_name":"Wieck, Andreas D.","first_name":"Andreas D."},{"first_name":"Cedrik","orcid":"https://orcid.org/0000-0002-3787-3572","last_name":"Meier","id":"20798","full_name":"Meier, Cedrik"}],"intvolume":"        42","page":"2552-2555","citation":{"apa":"Piegdon, K. A., Offer, M., Lorke, A., Urbanski, M., Hoischen, A., Kitzerow, H.-S., Declair, S., Förstner, J., Meier, T., Reuter, D., Wieck, A. D., &#38; Meier, C. (2010). Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator. <i>Physica E: Low-Dimensional Systems and Nanostructures</i>, <i>42</i>(10), 2552–2555. <a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">https://doi.org/10.1016/j.physe.2009.12.051</a>","short":"K.A. Piegdon, M. Offer, A. Lorke, M. Urbanski, A. Hoischen, H.-S. Kitzerow, S. Declair, J. Förstner, T. Meier, D. Reuter, A.D. Wieck, C. Meier, Physica E: Low-Dimensional Systems and Nanostructures 42 (2010) 2552–2555.","bibtex":"@article{Piegdon_Offer_Lorke_Urbanski_Hoischen_Kitzerow_Declair_Förstner_Meier_Reuter_et al._2010, title={Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator}, volume={42}, DOI={<a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">10.1016/j.physe.2009.12.051</a>}, number={10}, journal={Physica E: Low-dimensional Systems and Nanostructures}, publisher={Elsevier BV}, author={Piegdon, Karoline A. and Offer, Matthias and Lorke, Axel and Urbanski, Martin and Hoischen, Andreas and Kitzerow, Heinz-Siegfried and Declair, Stefan and Förstner, Jens and Meier, Torsten and Reuter, Dirk and et al.}, year={2010}, pages={2552–2555} }","mla":"Piegdon, Karoline A., et al. “Self-Assembled Quantum Dots in a Liquid-Crystal-Tunable Microdisk Resonator.” <i>Physica E: Low-Dimensional Systems and Nanostructures</i>, vol. 42, no. 10, Elsevier BV, 2010, pp. 2552–55, doi:<a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">10.1016/j.physe.2009.12.051</a>.","ama":"Piegdon KA, Offer M, Lorke A, et al. Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator. <i>Physica E: Low-dimensional Systems and Nanostructures</i>. 2010;42(10):2552-2555. doi:<a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">10.1016/j.physe.2009.12.051</a>","chicago":"Piegdon, Karoline A., Matthias Offer, Axel Lorke, Martin Urbanski, Andreas Hoischen, Heinz-Siegfried Kitzerow, Stefan Declair, et al. “Self-Assembled Quantum Dots in a Liquid-Crystal-Tunable Microdisk Resonator.” <i>Physica E: Low-Dimensional Systems and Nanostructures</i> 42, no. 10 (2010): 2552–55. <a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">https://doi.org/10.1016/j.physe.2009.12.051</a>.","ieee":"K. A. Piegdon <i>et al.</i>, “Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator,” <i>Physica E: Low-dimensional Systems and Nanostructures</i>, vol. 42, no. 10, pp. 2552–2555, 2010, doi: <a href=\"https://doi.org/10.1016/j.physe.2009.12.051\">10.1016/j.physe.2009.12.051</a>."},"publication_identifier":{"issn":["1386-9477"]},"has_accepted_license":"1","publication_status":"published","keyword":["tet_topic_qd","tet_topic_microdisk"],"ddc":["530"],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"GaAs-based semiconductor microdisks with high quality whispering gallery modes (Q44000) have been fabricated.A layer of self-organized InAs quantumdots (QDs) served as a light source to feed the optical modes at room temperature. In order to achieve frequency tuning of the optical modes, the microdisk devices have been immersed in 4 – cyano – 4´-pentylbiphenyl (5CB), a liquid crystal(LC) with a nematic phase below the clearing temperature of  TC≈34°C .We have studied the device performance in the temperature rangeof T=20-50°C, in order to investigate the influence of the nematic–isotropic phase transition on the optical modes. Moreover,we havea pplied an AC electric field to the device,which leads in the nematic phase to a reorientation of the anisotropic dielectric tensor of the liquid crystal.This electrical anisotropy can be used to achieve electrical tunability of the optical modes.Using the finite-difference time domain (FDTD) technique with an anisotropic material model, we are able to describe the influence of the liquid crystal qualitatively."}],"file":[{"date_updated":"2018-08-27T10:06:57Z","date_created":"2018-08-27T10:06:57Z","creator":"hclaudia","file_size":403248,"access_level":"closed","file_id":"4124","file_name":"2010 Piegdon,Offer,Lork,Urbanski,Hoischen,Kitzerwo, Declair,Förstner_Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator.pdf","content_type":"application/pdf","success":1,"relation":"main_file"}],"publication":"Physica E: Low-dimensional Systems and Nanostructures","title":"Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator","publisher":"Elsevier BV","date_created":"2018-08-27T10:03:35Z","year":"2010","issue":"10"},{"file_date_updated":"2018-08-28T08:41:56Z","article_type":"original","article_number":"217401","user_id":"16199","department":[{"_id":"15"},{"_id":"293"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"34"},{"_id":"61"},{"_id":"27"}],"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"_id":"4169","status":"public","type":"journal_article","doi":"10.1103/physrevlett.104.217401","author":[{"full_name":"Priyadarshi, S.","last_name":"Priyadarshi","first_name":"S."},{"first_name":"A. M.","full_name":"Racu, A. M.","last_name":"Racu"},{"first_name":"K.","last_name":"Pierz","full_name":"Pierz, K."},{"last_name":"Siegner","full_name":"Siegner, U.","first_name":"U."},{"first_name":"M.","full_name":"Bieler, M.","last_name":"Bieler"},{"first_name":"H. T.","last_name":"Duc","full_name":"Duc, H. T."},{"full_name":"Förstner, Jens","id":"158","orcid":"0000-0001-7059-9862","last_name":"Förstner","first_name":"Jens"},{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten"}],"volume":104,"date_updated":"2025-12-16T11:32:36Z","citation":{"apa":"Priyadarshi, S., Racu, A. M., Pierz, K., Siegner, U., Bieler, M., Duc, H. T., Förstner, J., &#38; Meier, T. (2010). Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells. <i>Physical Review Letters</i>, <i>104</i>(21), Article 217401. <a href=\"https://doi.org/10.1103/physrevlett.104.217401\">https://doi.org/10.1103/physrevlett.104.217401</a>","short":"S. Priyadarshi, A.M. Racu, K. Pierz, U. Siegner, M. Bieler, H.T. Duc, J. Förstner, T. Meier, Physical Review Letters 104 (2010).","mla":"Priyadarshi, S., et al. “Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells.” <i>Physical Review Letters</i>, vol. 104, no. 21, 217401, American Physical Society (APS), 2010, doi:<a href=\"https://doi.org/10.1103/physrevlett.104.217401\">10.1103/physrevlett.104.217401</a>.","bibtex":"@article{Priyadarshi_Racu_Pierz_Siegner_Bieler_Duc_Förstner_Meier_2010, title={Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells}, volume={104}, DOI={<a href=\"https://doi.org/10.1103/physrevlett.104.217401\">10.1103/physrevlett.104.217401</a>}, number={21217401}, journal={Physical Review Letters}, publisher={American Physical Society (APS)}, author={Priyadarshi, S. and Racu, A. M. and Pierz, K. and Siegner, U. and Bieler, M. and Duc, H. T. and Förstner, Jens and Meier, Torsten}, year={2010} }","chicago":"Priyadarshi, S., A. M. Racu, K. Pierz, U. Siegner, M. Bieler, H. T. Duc, Jens Förstner, and Torsten Meier. “Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells.” <i>Physical Review Letters</i> 104, no. 21 (2010). <a href=\"https://doi.org/10.1103/physrevlett.104.217401\">https://doi.org/10.1103/physrevlett.104.217401</a>.","ieee":"S. Priyadarshi <i>et al.</i>, “Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells,” <i>Physical Review Letters</i>, vol. 104, no. 21, Art. no. 217401, 2010, doi: <a href=\"https://doi.org/10.1103/physrevlett.104.217401\">10.1103/physrevlett.104.217401</a>.","ama":"Priyadarshi S, Racu AM, Pierz K, et al. Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells. <i>Physical Review Letters</i>. 2010;104(21). doi:<a href=\"https://doi.org/10.1103/physrevlett.104.217401\">10.1103/physrevlett.104.217401</a>"},"intvolume":"       104","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["0031-9007","1079-7114"]},"language":[{"iso":"eng"}],"ddc":["530"],"keyword":["tet_topic_qw"],"file":[{"file_size":447293,"access_level":"closed","file_id":"4170","file_name":"2010 Priyadarshi,Racu,Pierz,Siegner,Bieler,Duc,Förstner,Meier T_Reversal of coherently controlled ultrafast photocurrents by band mixing in undoped GaAs quantum wells.pdf","date_updated":"2018-08-28T08:41:56Z","date_created":"2018-08-28T08:41:56Z","creator":"hclaudia","success":1,"relation":"main_file","content_type":"application/pdf"}],"abstract":[{"lang":"eng","text":"It is demonstrated that valence-band mixing in GaAs quantum wells tremendously modifies electronic\r\ntransport. A coherent control scheme in which ultrafast currents are optically injected into undoped GaAs\r\nquantum wells upon excitation with femtosecond laser pulses is employed. An oscillatory dependence of\r\nthe injection current amplitude and direction on the excitation photon energy is observed. A microscopic\r\ntheoretical analysis shows that this current reversal is caused by the coupling of the light- and heavy-hole\r\nbands and that the hole currents dominate the overall current response. These surprising consequences of\r\nband mixing illuminate fundamental physics as they are unique for experiments which are able to monitor\r\nelectronic transport resulting from carriers with relatively large momenta."}],"publication":"Physical Review Letters","title":"Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in Undoped GaAs Quantum Wells","date_created":"2018-08-28T08:40:16Z","publisher":"American Physical Society (APS)","year":"2010","issue":"21"},{"year":"2010","publisher":"IEEE","date_created":"2018-08-28T08:34:52Z","title":"Enhanced FDTD edge correction for nonlinear effects calculation","publication":"2010 IEEE Antennas and Propagation Society International Symposium","abstract":[{"text":"The electromagnetic field in the vicinity of sharp edges needs a special treatment in numeric calculation whenever accurate, fast converging results are necessary. One of the fundamental works concerning field singularities has been proposed in 1972 [1] and states that the electromagnetic energy density must be integrable over any finite\r\ndomain, even if this domain contains singularities. It is shown, that the magnetic field \u0002H(\u0003, ϕ) and electric field \u0002E(\u0003, ϕ) are proportional to ∝ \u0003(t−1) for \u0003 → 0. The variable \u0003 is the distance to the edge and t has to fulfill the integrability condition and thus is restricted to 0 < t < 1. This result is often used to reduce the error corresponding to the singularity without increasing the numerical effort [2 - 5]. For this purpose, a correction factor K is estimated by inserting the proportionality into the wave equation. It is shown, that this method improves the accuracy of the result significantly, however the order of convergence is often not studied. In [4] a method to modify the material parameters in order to use analytic results to improve the numeric calculation is presented. In this contribution we will - inspired by the scheme given in [4] - develop a new method to estimate a correction factor for perfect conducting materials (PEC) and demonstrate the improvement of the results compared to the standard edge correction. Therefore analytic results (comparable to [1]) are consequently merged with the scheme in [4]. The main goal of this work is the calculation of the second harmonic generation (SHG) in the wave response of so-called metamaterials [6]. Frequently these structures\r\ncontain sharp metallic edges with field singularities at the interfaces which have a strong impact on the SHG signals. Thus, an accurate simulation of singularities is highly important. However, the following approach can also be applied to many other setups, and one of them is shown in the example below.","lang":"eng"}],"file":[{"relation":"main_file","content_type":"application/pdf","file_size":209412,"file_name":"2010 Classen,Förstner, Meier T,Schuhmann_Enhanced FDTD edge correction for nonlinear effects calculation.pdf","access_level":"open_access","file_id":"4168","date_updated":"2018-09-04T19:31:42Z","date_created":"2018-08-28T08:36:44Z","creator":"hclaudia"}],"ddc":["530"],"keyword":["tet_topic_numerics"],"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"isbn":["9781424449675","9781424449682"]},"has_accepted_license":"1","citation":{"apa":"Classen, C., Förstner, J., Meier, T., &#38; Schuhmann, R. (2010). Enhanced FDTD edge correction for nonlinear effects calculation. <i>2010 IEEE Antennas and Propagation Society International Symposium</i>, Article 11515155. 2010 IEEE international Symposium Antennas, Toronto, ON, Canada. <a href=\"https://doi.org/10.1109/aps.2010.5562017\">https://doi.org/10.1109/aps.2010.5562017</a>","mla":"Classen, C., et al. “Enhanced FDTD Edge Correction for Nonlinear Effects Calculation.” <i>2010 IEEE Antennas and Propagation Society International Symposium</i>, 11515155, IEEE, 2010, doi:<a href=\"https://doi.org/10.1109/aps.2010.5562017\">10.1109/aps.2010.5562017</a>.","bibtex":"@inproceedings{Classen_Förstner_Meier_Schuhmann_2010, title={Enhanced FDTD edge correction for nonlinear effects calculation}, DOI={<a href=\"https://doi.org/10.1109/aps.2010.5562017\">10.1109/aps.2010.5562017</a>}, number={11515155}, booktitle={2010 IEEE Antennas and Propagation Society International Symposium}, publisher={IEEE}, author={Classen, C and Förstner, Jens and Meier, Torsten and Schuhmann, R}, year={2010} }","short":"C. Classen, J. Förstner, T. Meier, R. Schuhmann, in: 2010 IEEE Antennas and Propagation Society International Symposium, IEEE, 2010.","ieee":"C. Classen, J. Förstner, T. Meier, and R. Schuhmann, “Enhanced FDTD edge correction for nonlinear effects calculation,” presented at the 2010 IEEE international Symposium Antennas, Toronto, ON, Canada, 2010, doi: <a href=\"https://doi.org/10.1109/aps.2010.5562017\">10.1109/aps.2010.5562017</a>.","chicago":"Classen, C, Jens Förstner, Torsten Meier, and R Schuhmann. “Enhanced FDTD Edge Correction for Nonlinear Effects Calculation.” In <i>2010 IEEE Antennas and Propagation Society International Symposium</i>. IEEE, 2010. <a href=\"https://doi.org/10.1109/aps.2010.5562017\">https://doi.org/10.1109/aps.2010.5562017</a>.","ama":"Classen C, Förstner J, Meier T, Schuhmann R. Enhanced FDTD edge correction for nonlinear effects calculation. In: <i>2010 IEEE Antennas and Propagation Society International Symposium</i>. IEEE; 2010. doi:<a href=\"https://doi.org/10.1109/aps.2010.5562017\">10.1109/aps.2010.5562017</a>"},"oa":"1","date_updated":"2025-12-16T12:35:39Z","author":[{"full_name":"Classen, C","last_name":"Classen","first_name":"C"},{"last_name":"Förstner","orcid":"0000-0001-7059-9862","id":"158","full_name":"Förstner, Jens","first_name":"Jens"},{"last_name":"Meier","orcid":"0000-0001-8864-2072","id":"344","full_name":"Meier, Torsten","first_name":"Torsten"},{"first_name":"R","full_name":"Schuhmann, R","last_name":"Schuhmann"}],"conference":{"start_date":"2010-07-11","name":"2010 IEEE international Symposium Antennas","location":"Toronto, ON, Canada","end_date":"2010-07-17"},"doi":"10.1109/aps.2010.5562017","type":"conference","urn":"41677","status":"public","_id":"4167","user_id":"16199","department":[{"_id":"61"},{"_id":"15"},{"_id":"293"},{"_id":"170"},{"_id":"230"},{"_id":"35"},{"_id":"34"}],"article_number":"11515155 ","file_date_updated":"2018-09-04T19:31:42Z"},{"ddc":["530"],"keyword":["tet_topic_qd","tet_topic_microdisk"],"language":[{"iso":"eng"}],"abstract":[{"text":"Microdisks made from GaAs with embedded InAs quantum dots are immersed in the liquid crystal 4-cyano-4’-pentylbiphenyl (5CB). The quantum dots serve as emitters feeding the optical modes of the photonic cavity. By changing temperature, the liquid crystal undergoes a phase transition from the isotropic to the nematic state, which can be used\r\nas an effective tuning mechanism of the photonic modes of the cavity. In the nematic state, the uniaxial electrical anisotropy of the liquid crystal molecules can be exploited for orienting the material in an electric field,\r\nthus externally controlling the birefringence of the material. Using this effect, an electric field induced tuning of the modes is achieved. Numerical simulations using the finite-differences time-domain (FDTD) technique\r\nemploying an anisotropic dielectric medium allow to understand the alignment of the liquid crystal molecules on the surface of the microdisk resonator.","lang":"eng"}],"file":[{"date_created":"2018-08-28T08:52:50Z","creator":"hclaudia","date_updated":"2018-09-04T20:02:01Z","file_name":"2010 Piegdon,Declair,Förstner,Meier T,Matthias,Urbanski,Kitzerow,Reuter,Wieck,Lorcke,Meier C_Tuning quantum-dot based photonic devices with liquid crystals.pdf","file_id":"4173","access_level":"open_access","file_size":627755,"content_type":"application/pdf","relation":"main_file"}],"publication":"Optics Express","title":"Tuning quantum-dot based photonic devices with liquid crystals","publisher":"The Optical Society","date_created":"2018-08-28T08:50:06Z","year":"2010","issue":"8","article_number":"7946","article_type":"original","file_date_updated":"2018-09-04T20:02:01Z","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"4172","user_id":"16199","department":[{"_id":"15"},{"_id":"287"},{"_id":"293"},{"_id":"292"},{"_id":"35"},{"_id":"230"},{"_id":"313"},{"_id":"170"},{"_id":"27"},{"_id":"34"},{"_id":"61"}],"urn":"41725","status":"public","type":"journal_article","doi":"10.1364/oe.18.007946","date_updated":"2025-12-16T16:44:44Z","oa":"1","author":[{"first_name":"Karoline A.","last_name":"Piegdon","full_name":"Piegdon, Karoline A."},{"first_name":"Stefan","last_name":"Declair","full_name":"Declair, Stefan"},{"last_name":"Förstner","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","id":"158","first_name":"Jens"},{"first_name":"Torsten","full_name":"Meier, Torsten","id":"344","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"full_name":"Matthias, Heiner","last_name":"Matthias","first_name":"Heiner"},{"first_name":"Martin","full_name":"Urbanski, Martin","last_name":"Urbanski"},{"first_name":"Heinz-Siegfried","last_name":"Kitzerow","full_name":"Kitzerow, Heinz-Siegfried","id":"254"},{"first_name":"Dirk","last_name":"Reuter","full_name":"Reuter, Dirk","id":"37763"},{"first_name":"Andreas D.","last_name":"Wieck","full_name":"Wieck, Andreas D."},{"first_name":"Axel","full_name":"Lorke, Axel","last_name":"Lorke"},{"first_name":"Cedrik","orcid":"https://orcid.org/0000-0002-3787-3572","last_name":"Meier","full_name":"Meier, Cedrik","id":"20798"}],"volume":18,"citation":{"ama":"Piegdon KA, Declair S, Förstner J, et al. Tuning quantum-dot based photonic devices with liquid crystals. <i>Optics Express</i>. 2010;18(8). doi:<a href=\"https://doi.org/10.1364/oe.18.007946\">10.1364/oe.18.007946</a>","chicago":"Piegdon, Karoline A., Stefan Declair, Jens Förstner, Torsten Meier, Heiner Matthias, Martin Urbanski, Heinz-Siegfried Kitzerow, et al. “Tuning Quantum-Dot Based Photonic Devices with Liquid Crystals.” <i>Optics Express</i> 18, no. 8 (2010). <a href=\"https://doi.org/10.1364/oe.18.007946\">https://doi.org/10.1364/oe.18.007946</a>.","ieee":"K. A. Piegdon <i>et al.</i>, “Tuning quantum-dot based photonic devices with liquid crystals,” <i>Optics Express</i>, vol. 18, no. 8, Art. no. 7946, 2010, doi: <a href=\"https://doi.org/10.1364/oe.18.007946\">10.1364/oe.18.007946</a>.","bibtex":"@article{Piegdon_Declair_Förstner_Meier_Matthias_Urbanski_Kitzerow_Reuter_Wieck_Lorke_et al._2010, title={Tuning quantum-dot based photonic devices with liquid crystals}, volume={18}, DOI={<a href=\"https://doi.org/10.1364/oe.18.007946\">10.1364/oe.18.007946</a>}, number={87946}, journal={Optics Express}, publisher={The Optical Society}, author={Piegdon, Karoline A. and Declair, Stefan and Förstner, Jens and Meier, Torsten and Matthias, Heiner and Urbanski, Martin and Kitzerow, Heinz-Siegfried and Reuter, Dirk and Wieck, Andreas D. and Lorke, Axel and et al.}, year={2010} }","short":"K.A. Piegdon, S. Declair, J. Förstner, T. Meier, H. Matthias, M. Urbanski, H.-S. Kitzerow, D. Reuter, A.D. Wieck, A. Lorke, C. Meier, Optics Express 18 (2010).","mla":"Piegdon, Karoline A., et al. “Tuning Quantum-Dot Based Photonic Devices with Liquid Crystals.” <i>Optics Express</i>, vol. 18, no. 8, 7946, The Optical Society, 2010, doi:<a href=\"https://doi.org/10.1364/oe.18.007946\">10.1364/oe.18.007946</a>.","apa":"Piegdon, K. A., Declair, S., Förstner, J., Meier, T., Matthias, H., Urbanski, M., Kitzerow, H.-S., Reuter, D., Wieck, A. D., Lorke, A., &#38; Meier, C. (2010). Tuning quantum-dot based photonic devices with liquid crystals. <i>Optics Express</i>, <i>18</i>(8), Article 7946. <a href=\"https://doi.org/10.1364/oe.18.007946\">https://doi.org/10.1364/oe.18.007946</a>"},"intvolume":"        18","publication_status":"published","publication_identifier":{"issn":["1094-4087"]},"has_accepted_license":"1"},{"publication_status":"published","page":"247-249","citation":{"bibtex":"@inproceedings{Meier_Zhang_Kuznetsova_Yang_Bristow_Dai_Li_Thomas_Mukamel_Mirin_et al._2009, title={Ultrafast Coherent Interactions in Quantum Wells Studied by Two-Dimensional Fourier Transform Spectroscopy}, booktitle={Ultrafast Phenomena XVI: Proceedings of the 16th International Conference, Palazzo dei Congressi Stresa, Italy, June 9--13, 2008}, publisher={Springer Berlin Heidelberg}, author={Meier, Torsten and Zhang, Tianhao and Kuznetsova, Irina and Yang, Lijun and Bristow, Alan D and Dai, Xingcan and Li, Xiaoqin and Thomas, P. and Mukamel, S. and Mirin, Richard P. and et al.}, year={2009}, pages={247–249} }","short":"T. Meier, T. Zhang, I. Kuznetsova, L. Yang, A.D. Bristow, X. Dai, X. Li, P. Thomas, S. Mukamel, R.P. Mirin, S.T. Cundiff, in: Ultrafast Phenomena XVI: Proceedings of the 16th International Conference, Palazzo Dei Congressi Stresa, Italy, June 9--13, 2008, Springer Berlin Heidelberg, 2009, pp. 247–249.","mla":"Meier, Torsten, et al. “Ultrafast Coherent Interactions in Quantum Wells Studied by Two-Dimensional Fourier Transform Spectroscopy.” <i>Ultrafast Phenomena XVI: Proceedings of the 16th International Conference, Palazzo Dei Congressi Stresa, Italy, June 9--13, 2008</i>, Springer Berlin Heidelberg, 2009, pp. 247–49.","apa":"Meier, T., Zhang, T., Kuznetsova, I., Yang, L., Bristow, A. D., Dai, X., Li, X., Thomas, P., Mukamel, S., Mirin, R. P., &#38; Cundiff, S. T. (2009). Ultrafast Coherent Interactions in Quantum Wells Studied by Two-Dimensional Fourier Transform Spectroscopy. <i>Ultrafast Phenomena XVI: Proceedings of the 16th International Conference, Palazzo Dei Congressi Stresa, Italy, June 9--13, 2008</i>, 247–249.","chicago":"Meier, Torsten, Tianhao Zhang, Irina Kuznetsova, Lijun Yang, Alan D Bristow, Xingcan Dai, Xiaoqin Li, et al. “Ultrafast Coherent Interactions in Quantum Wells Studied by Two-Dimensional Fourier Transform Spectroscopy.” In <i>Ultrafast Phenomena XVI: Proceedings of the 16th International Conference, Palazzo Dei Congressi Stresa, Italy, June 9--13, 2008</i>, 247–49. Springer Berlin Heidelberg, 2009.","ieee":"T. Meier <i>et al.</i>, “Ultrafast Coherent Interactions in Quantum Wells Studied by Two-Dimensional Fourier Transform Spectroscopy,” in <i>Ultrafast Phenomena XVI: Proceedings of the 16th International Conference, Palazzo dei Congressi Stresa, Italy, June 9--13, 2008</i>, Palazzo dei Congressi Stresa, Italy, 2009, pp. 247–249.","ama":"Meier T, Zhang T, Kuznetsova I, et al. Ultrafast Coherent Interactions in Quantum Wells Studied by Two-Dimensional Fourier Transform Spectroscopy. In: <i>Ultrafast Phenomena XVI: Proceedings of the 16th International Conference, Palazzo Dei Congressi Stresa, Italy, June 9--13, 2008</i>. Springer Berlin Heidelberg; 2009:247-249."},"year":"2009","date_created":"2023-04-21T22:00:44Z","author":[{"id":"344","full_name":"Meier, Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","first_name":"Torsten"},{"full_name":"Zhang, Tianhao","last_name":"Zhang","first_name":"Tianhao"},{"full_name":"Kuznetsova, Irina","last_name":"Kuznetsova","first_name":"Irina"},{"full_name":"Yang, Lijun","last_name":"Yang","first_name":"Lijun"},{"full_name":"Bristow, Alan D","last_name":"Bristow","first_name":"Alan D"},{"last_name":"Dai","full_name":"Dai, Xingcan","first_name":"Xingcan"},{"full_name":"Li, Xiaoqin","last_name":"Li","first_name":"Xiaoqin"},{"first_name":"P.","full_name":"Thomas, P.","last_name":"Thomas"},{"last_name":"Mukamel","full_name":"Mukamel, S.","first_name":"S."},{"first_name":"Richard P.","full_name":"Mirin, Richard P.","last_name":"Mirin"},{"last_name":"Cundiff","full_name":"Cundiff, S.T.","first_name":"S.T."}],"oa":"1","date_updated":"2023-04-21T22:00:47Z","publisher":"Springer Berlin Heidelberg","conference":{"start_date":"2008-06-09","name":"Ultrafast Phenomena XVI: Proceedings of the 16th International Conference","location":"Palazzo dei Congressi Stresa, Italy","end_date":"2008-06-13"},"main_file_link":[{"url":"https://books.google.de/books?hl=en&lr=&id=rvtIAqNmgC4C&oi=fnd&pg=PA247&dq=info:q2sTDszkkRMJ:scholar.google.com&ots=-aXLlDdmG9&sig=4zByzihgk29LwWZAildxmlDXPd0&redir_esc=y#v=onepage&q&f=false","open_access":"1"}],"title":"Ultrafast Coherent Interactions in Quantum Wells Studied by Two-Dimensional Fourier Transform Spectroscopy","publication":"Ultrafast Phenomena XVI: Proceedings of the 16th International Conference, Palazzo dei Congressi Stresa, Italy, June 9--13, 2008","type":"conference","status":"public","department":[{"_id":"293"}],"user_id":"49063","_id":"44108","language":[{"iso":"eng"}]},{"publication":"physica status solidi c","abstract":[{"lang":"eng","text":"We demonstrate a technique for the generation and detection of electron currents at surfaces on a femtosecond time scale with a contact-free experimental setup based on a combination of coherent control and photoemission spectroscopy. We have applied this technique for electrons excited into image-potential states on a Cu(100) surface that form a free-electron-like band in the direction parallel to the surface. The photogeneration of currents is described by optical Bloch equations for a multiband model. By incorporating field-induced interband and intersubband transitions together with intraband accelerations into the model, the observed phase dependence of the population and of the current can be reproduced."}],"language":[{"iso":"eng"}],"issue":"2","year":"2009","publisher":"WILEY‐VCH Verlag","date_created":"2023-04-21T21:53:57Z","title":"Generation and time‐resolved detection of coherently controlled electric currents at surfaces","type":"journal_article","status":"public","_id":"44107","user_id":"49063","department":[{"_id":"293"}],"publication_status":"published","citation":{"apa":"Meier, T., Güdde, J., Rohleder, M., Koch, S. W., &#38; Höfer, U. (2009). Generation and time‐resolved detection of coherently controlled electric currents at surfaces. <i>Physica Status Solidi c</i>, <i>6</i>(2), 461–465. <a href=\"https://doi.org/10.1002/pssc.200880350\">https://doi.org/10.1002/pssc.200880350</a>","bibtex":"@article{Meier_Güdde_Rohleder_Koch_Höfer_2009, title={Generation and time‐resolved detection of coherently controlled electric currents at surfaces}, volume={6}, DOI={<a href=\"https://doi.org/10.1002/pssc.200880350\">10.1002/pssc.200880350</a>}, number={2}, journal={physica status solidi c}, publisher={WILEY‐VCH Verlag}, author={Meier, Torsten and Güdde, Jens and Rohleder, M. and Koch, S.W. and Höfer, Ulrich}, year={2009}, pages={461–465} }","mla":"Meier, Torsten, et al. “Generation and Time‐resolved Detection of Coherently Controlled Electric Currents at Surfaces.” <i>Physica Status Solidi c</i>, vol. 6, no. 2, WILEY‐VCH Verlag, 2009, pp. 461–65, doi:<a href=\"https://doi.org/10.1002/pssc.200880350\">10.1002/pssc.200880350</a>.","short":"T. Meier, J. Güdde, M. Rohleder, S.W. Koch, U. Höfer, Physica Status Solidi c 6 (2009) 461–465.","chicago":"Meier, Torsten, Jens Güdde, M. Rohleder, S.W. Koch, and Ulrich Höfer. “Generation and Time‐resolved Detection of Coherently Controlled Electric Currents at Surfaces.” <i>Physica Status Solidi c</i> 6, no. 2 (2009): 461–65. <a href=\"https://doi.org/10.1002/pssc.200880350\">https://doi.org/10.1002/pssc.200880350</a>.","ieee":"T. Meier, J. Güdde, M. Rohleder, S. W. Koch, and U. Höfer, “Generation and time‐resolved detection of coherently controlled electric currents at surfaces,” <i>physica status solidi c</i>, vol. 6, no. 2, pp. 461–465, 2009, doi: <a href=\"https://doi.org/10.1002/pssc.200880350\">10.1002/pssc.200880350</a>.","ama":"Meier T, Güdde J, Rohleder M, Koch SW, Höfer U. Generation and time‐resolved detection of coherently controlled electric currents at surfaces. <i>physica status solidi c</i>. 2009;6(2):461-465. doi:<a href=\"https://doi.org/10.1002/pssc.200880350\">10.1002/pssc.200880350</a>"},"page":"461-465","intvolume":"         6","date_updated":"2023-04-21T21:54:00Z","author":[{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","id":"344","full_name":"Meier, Torsten"},{"last_name":"Güdde","full_name":"Güdde, Jens","first_name":"Jens"},{"first_name":"M.","full_name":"Rohleder, M.","last_name":"Rohleder"},{"last_name":"Koch","full_name":"Koch, S.W.","first_name":"S.W."},{"last_name":"Höfer","full_name":"Höfer, Ulrich","first_name":"Ulrich"}],"volume":6,"main_file_link":[{"url":"https://onlinelibrary.wiley.com/doi/abs/10.1002/pssc.200880350"}],"doi":"10.1002/pssc.200880350"},{"type":"conference","status":"public","_id":"4179","department":[{"_id":"15"},{"_id":"293"},{"_id":"287"},{"_id":"35"},{"_id":"170"},{"_id":"230"}],"series_title":"AIP Conference Proceedings ","user_id":"49063","publication_status":"published","page":"60-62","intvolume":"      1176","citation":{"chicago":"Förstner, Jens, S. Declair, Cedrik Meier, and Torsten Meier. “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal.” In <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>, 1176:60–62. AIP Conference Proceedings , 2009. <a href=\"https://doi.org/10.1063/1.3253921\">https://doi.org/10.1063/1.3253921</a>.","ieee":"J. Förstner, S. Declair, C. Meier, and T. Meier, “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal,” in <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>, Tacona, 2009, vol. 1176, no. 1, pp. 60–62, doi: <a href=\"https://doi.org/10.1063/1.3253921\">10.1063/1.3253921</a>.","ama":"Förstner J, Declair S, Meier C, Meier T. Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal. In: <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>. Vol 1176. AIP Conference Proceedings . ; 2009:60-62. doi:<a href=\"https://doi.org/10.1063/1.3253921\">10.1063/1.3253921</a>","mla":"Förstner, Jens, et al. “Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal.” <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>, vol. 1176, no. 1, 2009, pp. 60–62, doi:<a href=\"https://doi.org/10.1063/1.3253921\">10.1063/1.3253921</a>.","bibtex":"@inproceedings{Förstner_Declair_Meier_Meier_2009, series={AIP Conference Proceedings }, title={Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal}, volume={1176}, DOI={<a href=\"https://doi.org/10.1063/1.3253921\">10.1063/1.3253921</a>}, number={1}, booktitle={Theoretical and Computational Nanophotonics Tacona-Photonics}, author={Förstner, Jens and Declair, S. and Meier, Cedrik and Meier, Torsten}, year={2009}, pages={60–62}, collection={AIP Conference Proceedings } }","short":"J. Förstner, S. Declair, C. Meier, T. Meier, in: Theoretical and Computational Nanophotonics Tacona-Photonics, 2009, pp. 60–62.","apa":"Förstner, J., Declair, S., Meier, C., &#38; Meier, T. (2009). Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal. <i>Theoretical and Computational Nanophotonics Tacona-Photonics</i>, <i>1176</i>(1), 60–62. <a href=\"https://doi.org/10.1063/1.3253921\">https://doi.org/10.1063/1.3253921</a>"},"date_updated":"2023-04-19T11:13:59Z","volume":1176,"author":[{"first_name":"Jens","id":"158","full_name":"Förstner, Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner"},{"last_name":"Declair","full_name":"Declair, S.","first_name":"S."},{"id":"20798","full_name":"Meier, Cedrik","last_name":"Meier","orcid":"https://orcid.org/0000-0002-3787-3572","first_name":"Cedrik"},{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten","id":"344"}],"conference":{"start_date":"2009-10-28","name":"Theoretical and Computational Nanophotonics Tacona-Photonics","location":"Tacona","end_date":"2009-10-28"},"doi":"10.1063/1.3253921","publication":"Theoretical and Computational Nanophotonics Tacona-Photonics","abstract":[{"text":"We numerically investigate Whispering Gallery Modes (WGM) in a subwavelength microdisk resonator [1] embedded in an uniaxial anisotropic liquid crystal environment. It is shown that the WGMs have anticrossing behavior when modes of different radial mode order M or azimuthal order N approach each other spectrally. ","lang":"eng"}],"keyword":["tet_topic_microdisk"],"language":[{"iso":"eng"}],"issue":"1","year":"2009","date_created":"2018-08-28T09:17:05Z","title":"Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal"},{"title":"Coherent control in hybrid metal-semiconductor nanostructures","conference":{"name":"DPG Spring meeting 2009","start_date":"2009-03-22","end_date":"2009-03-27","location":"Dresden, Germany"},"main_file_link":[{"url":"https://www.dpg-verhandlungen.de/year/2009/conference/dresden/part/o/session/31"}],"date_updated":"2023-04-19T11:46:49Z","volume":44,"date_created":"2023-04-19T11:46:47Z","author":[{"first_name":"Torsten","full_name":"Meier, Torsten","id":"344","last_name":"Meier","orcid":"0000-0001-8864-2072"},{"id":"138","full_name":"Reichelt, Matthias","last_name":"Reichelt","first_name":"Matthias"}],"year":"2009","intvolume":"        44","citation":{"bibtex":"@inproceedings{Meier_Reichelt_2009, series={Verhandlungen der Deutschen Physikalischen Gesellschaft}, title={Coherent control in hybrid metal-semiconductor nanostructures}, volume={44}, number={5}, booktitle={DPG Spring meeting 2009}, author={Meier, Torsten and Reichelt, Matthias}, year={2009}, collection={Verhandlungen der Deutschen Physikalischen Gesellschaft} }","mla":"Meier, Torsten, and Matthias Reichelt. “Coherent Control in Hybrid Metal-Semiconductor Nanostructures.” <i>DPG Spring Meeting 2009</i>, vol. 44, no. 5, 2009.","short":"T. Meier, M. Reichelt, in: DPG Spring Meeting 2009, 2009.","apa":"Meier, T., &#38; Reichelt, M. (2009). Coherent control in hybrid metal-semiconductor nanostructures. <i>DPG Spring Meeting 2009</i>, <i>44</i>(5).","ama":"Meier T, Reichelt M. Coherent control in hybrid metal-semiconductor nanostructures. In: <i>DPG Spring Meeting 2009</i>. Vol 44. Verhandlungen der Deutschen Physikalischen Gesellschaft. ; 2009.","chicago":"Meier, Torsten, and Matthias Reichelt. “Coherent Control in Hybrid Metal-Semiconductor Nanostructures.” In <i>DPG Spring Meeting 2009</i>, Vol. 44. Verhandlungen Der Deutschen Physikalischen Gesellschaft, 2009.","ieee":"T. Meier and M. Reichelt, “Coherent control in hybrid metal-semiconductor nanostructures,” in <i>DPG Spring meeting 2009</i>, Dresden, Germany, 2009, vol. 44, no. 5."},"publication_identifier":{"issn":["0420-0195"]},"publication_status":"published","issue":"5","language":[{"iso":"eng"}],"_id":"44069","department":[{"_id":"293"}],"user_id":"49063","series_title":"Verhandlungen der Deutschen Physikalischen Gesellschaft","abstract":[{"text":"Recently it has been shown experimentally that it is possible to coherently control nano-optical excitations by using sophisticated shaped laser pulses. In this work a similar technique is used to theoretically investigate a hybrid nanostructure which consists of a metal aperture and a quantum wire. It is shown that one can concentrate the optically excited electron density at an arbitrary position due to wave packet dynamics by chosing particular frequency components and phases of the chirped laser pulse. The optimization process is performed with a genetic algorithm which is linked to a 3D-FDTD solver.","lang":"eng"}],"status":"public","publication":"DPG Spring meeting 2009","type":"conference"},{"department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"}],"user_id":"49063","_id":"23481","language":[{"iso":"eng"}],"publication":"Optics Letters","type":"journal_article","status":"public","abstract":[{"text":"A one-dimensional semiconductor nanostructure is locally excited through a metal aperture. It is shown that the electron density can be coherently localized at desired spatial and temporal positions by using nontrivially shaped laser pulses. To obtain the optimized laser field, Bloch equations for a tight-binding model system are solved together with a genetic pulse-shaping algorithm. Full three-dimensional finite-difference time-domain (FDTD) simulations of the Maxwell–Bloch equations confirm the predicted coherent spatiotemporal control.","lang":"eng"}],"volume":34,"author":[{"id":"138","full_name":"Reichelt, Matthias","last_name":"Reichelt","first_name":"Matthias"},{"first_name":"Torsten","id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier"}],"date_created":"2021-08-24T08:59:15Z","date_updated":"2023-04-19T11:16:09Z","doi":"10.1364/ol.34.002900","title":"Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure","issue":"19","publication_identifier":{"issn":["0146-9592","1539-4794"]},"publication_status":"published","intvolume":"        34","page":"2900-2902","citation":{"ieee":"M. Reichelt and T. Meier, “Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure,” <i>Optics Letters</i>, vol. 34, no. 19, pp. 2900–2902, 2009, doi: <a href=\"https://doi.org/10.1364/ol.34.002900\">10.1364/ol.34.002900</a>.","chicago":"Reichelt, Matthias, and Torsten Meier. “Shaping the Spatiotemporal Dynamics of the Electron Density in a Hybrid Metal-Semiconductor Nanostructure.” <i>Optics Letters</i> 34, no. 19 (2009): 2900–2902. <a href=\"https://doi.org/10.1364/ol.34.002900\">https://doi.org/10.1364/ol.34.002900</a>.","ama":"Reichelt M, Meier T. Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure. <i>Optics Letters</i>. 2009;34(19):2900-2902. doi:<a href=\"https://doi.org/10.1364/ol.34.002900\">10.1364/ol.34.002900</a>","mla":"Reichelt, Matthias, and Torsten Meier. “Shaping the Spatiotemporal Dynamics of the Electron Density in a Hybrid Metal-Semiconductor Nanostructure.” <i>Optics Letters</i>, vol. 34, no. 19, 2009, pp. 2900–02, doi:<a href=\"https://doi.org/10.1364/ol.34.002900\">10.1364/ol.34.002900</a>.","bibtex":"@article{Reichelt_Meier_2009, title={Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure}, volume={34}, DOI={<a href=\"https://doi.org/10.1364/ol.34.002900\">10.1364/ol.34.002900</a>}, number={19}, journal={Optics Letters}, author={Reichelt, Matthias and Meier, Torsten}, year={2009}, pages={2900–2902} }","short":"M. Reichelt, T. Meier, Optics Letters 34 (2009) 2900–2902.","apa":"Reichelt, M., &#38; Meier, T. (2009). Shaping the spatiotemporal dynamics of the electron density in a hybrid metal-semiconductor nanostructure. <i>Optics Letters</i>, <i>34</i>(19), 2900–2902. <a href=\"https://doi.org/10.1364/ol.34.002900\">https://doi.org/10.1364/ol.34.002900</a>"},"year":"2009"},{"user_id":"49063","series_title":"SPIE Proceedings","department":[{"_id":"293"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"_id":"4184","status":"public","editor":[{"first_name":"Kong-Thon","full_name":"Tsen, Kong-Thon","last_name":"Tsen"},{"first_name":"Jin-Joo","last_name":"Song","full_name":"Song, Jin-Joo"},{"first_name":"Markus","last_name":"Betz","full_name":"Betz, Markus"},{"first_name":"Abdulhakem Y.","full_name":"Elezzabi, Abdulhakem Y.","last_name":"Elezzabi"}],"type":"conference","doi":"10.1117/12.811841","conference":{"location":"San Jose (California / USA)","name":"SPIE OPTO: Integrated Optoelectronic Devices, 2009"},"author":[{"full_name":"Bieler, M.","last_name":"Bieler","first_name":"M."},{"last_name":"Pierz","full_name":"Pierz, K.","first_name":"K."},{"last_name":"Siegner","full_name":"Siegner, U.","first_name":"U."},{"full_name":"Dawson, P.","last_name":"Dawson","first_name":"P."},{"full_name":"Duc, H. T.","last_name":"Duc","first_name":"H. T."},{"first_name":"Jens","id":"158","full_name":"Förstner, Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner"},{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","id":"344","full_name":"Meier, Torsten"}],"volume":7214,"date_updated":"2023-04-21T20:01:45Z","citation":{"apa":"Bieler, M., Pierz, K., Siegner, U., Dawson, P., Duc, H. T., Förstner, J., &#38; Meier, T. (2009). Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory. In K.-T. Tsen, J.-J. Song, M. Betz, &#38; A. Y. Elezzabi (Eds.), <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i> (Vol. 7214, pp. 721404-721404–721413). SPIE. <a href=\"https://doi.org/10.1117/12.811841\">https://doi.org/10.1117/12.811841</a>","short":"M. Bieler, K. Pierz, U. Siegner, P. Dawson, H.T. Duc, J. Förstner, T. Meier, in: K.-T. Tsen, J.-J. Song, M. Betz, A.Y. Elezzabi (Eds.), Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, SPIE, 2009, pp. 721404-721404–13.","mla":"Bieler, M., et al. “Generation of Injection Currents in (110)-Oriented GaAs Quantum Wells: Experimental Observation and Development of a Microscopic Theory.” <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i>, edited by Kong-Thon Tsen et al., vol. 7214, SPIE, 2009, pp. 721404-721404–13, doi:<a href=\"https://doi.org/10.1117/12.811841\">10.1117/12.811841</a>.","bibtex":"@inproceedings{Bieler_Pierz_Siegner_Dawson_Duc_Förstner_Meier_2009, series={SPIE Proceedings}, title={Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory}, volume={7214}, DOI={<a href=\"https://doi.org/10.1117/12.811841\">10.1117/12.811841</a>}, booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII}, publisher={SPIE}, author={Bieler, M. and Pierz, K. and Siegner, U. and Dawson, P. and Duc, H. T. and Förstner, Jens and Meier, Torsten}, editor={Tsen, Kong-Thon and Song, Jin-Joo and Betz, Markus and Elezzabi, Abdulhakem Y.}, year={2009}, pages={721404-721404–13}, collection={SPIE Proceedings} }","chicago":"Bieler, M., K. Pierz, U. Siegner, P. Dawson, H. T. Duc, Jens Förstner, and Torsten Meier. “Generation of Injection Currents in (110)-Oriented GaAs Quantum Wells: Experimental Observation and Development of a Microscopic Theory.” In <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i>, edited by Kong-Thon Tsen, Jin-Joo Song, Markus Betz, and Abdulhakem Y. Elezzabi, 7214:721404-721404–13. SPIE Proceedings. SPIE, 2009. <a href=\"https://doi.org/10.1117/12.811841\">https://doi.org/10.1117/12.811841</a>.","ieee":"M. Bieler <i>et al.</i>, “Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory,” in <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i>, San Jose (California / USA), 2009, vol. 7214, pp. 721404-721404–13, doi: <a href=\"https://doi.org/10.1117/12.811841\">10.1117/12.811841</a>.","ama":"Bieler M, Pierz K, Siegner U, et al. Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory. In: Tsen K-T, Song J-J, Betz M, Elezzabi AY, eds. <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII</i>. Vol 7214. SPIE Proceedings. SPIE; 2009:721404-721404-721413. doi:<a href=\"https://doi.org/10.1117/12.811841\">10.1117/12.811841</a>"},"intvolume":"      7214","page":"721404-721404-13","publication_status":"published","language":[{"iso":"eng"}],"keyword":["tet_topic_qw"],"abstract":[{"lang":"eng","text":"We have experimentally investigated injection currents generated by all-optical excitation of GaAs/AlGaAs quantum wells excited with 130 fs optical pulses. The currents have been detected via free-space THz experiments at room temperature. Our experiments prove that Coulomb effects strongly influence injection currents. This becomes most prominently visible when exciting light-hole exciton transitions. At this photon energy we observe a pronounced phase shift of the current transients which is due to oppositely oriented heavy-hole and light-hole type contributions. We are currently developing a microscopic theory based on a 14×14 k.p model in combination with the semiconductor Bloch equations to describe the observed features quantitatively. The combined theoretical and experimental approach will allow us to analyze the influence of the bandstructure and interaction effects on the injection current amplitude and current dynamics."}],"publication":"Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII","title":"Generation of injection currents in (110)-oriented GaAs quantum wells: experimental observation and development of a microscopic theory","date_created":"2018-08-28T09:35:18Z","publisher":"SPIE","year":"2009"},{"year":"2009","citation":{"ieee":"T. Meier, S. W. Koch, M. Kira, J. T. Steiner, and D. Golde, “Microscopic theory of the linear and nonlinear Terahertz response of semiconductors,” presented at the  CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, Munich, Germany, 2009, doi: <a href=\"https://doi.org/10.1109/CLEOE-EQEC.2009.5192555\">10.1109/CLEOE-EQEC.2009.5192555</a>.","chicago":"Meier, Torsten, S.W. Koch, M. Kira, J.T. Steiner, and D. Golde. “Microscopic Theory of the Linear and Nonlinear Terahertz Response of Semiconductors.” In <i> CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference</i>. IEEE, 2009. <a href=\"https://doi.org/10.1109/CLEOE-EQEC.2009.5192555\">https://doi.org/10.1109/CLEOE-EQEC.2009.5192555</a>.","ama":"Meier T, Koch SW, Kira M, Steiner JT, Golde D. Microscopic theory of the linear and nonlinear Terahertz response of semiconductors. In: <i> CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference</i>. IEEE; 2009. doi:<a href=\"https://doi.org/10.1109/CLEOE-EQEC.2009.5192555\">10.1109/CLEOE-EQEC.2009.5192555</a>","bibtex":"@inproceedings{Meier_Koch_Kira_Steiner_Golde_2009, title={Microscopic theory of the linear and nonlinear Terahertz response of semiconductors}, DOI={<a href=\"https://doi.org/10.1109/CLEOE-EQEC.2009.5192555\">10.1109/CLEOE-EQEC.2009.5192555</a>}, booktitle={ CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference}, publisher={IEEE}, author={Meier, Torsten and Koch, S.W. and Kira, M. and Steiner, J.T. and Golde, D.}, year={2009} }","mla":"Meier, Torsten, et al. “Microscopic Theory of the Linear and Nonlinear Terahertz Response of Semiconductors.” <i> CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference</i>, IEEE, 2009, doi:<a href=\"https://doi.org/10.1109/CLEOE-EQEC.2009.5192555\">10.1109/CLEOE-EQEC.2009.5192555</a>.","short":"T. Meier, S.W. Koch, M. Kira, J.T. Steiner, D. Golde, in:  CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, IEEE, 2009.","apa":"Meier, T., Koch, S. W., Kira, M., Steiner, J. T., &#38; Golde, D. (2009). Microscopic theory of the linear and nonlinear Terahertz response of semiconductors. <i> CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference</i>.  CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, Munich, Germany. <a href=\"https://doi.org/10.1109/CLEOE-EQEC.2009.5192555\">https://doi.org/10.1109/CLEOE-EQEC.2009.5192555</a>"},"publication_identifier":{"isbn":["978-1-4244-4079-5"]},"publication_status":"published","title":"Microscopic theory of the linear and nonlinear Terahertz response of semiconductors","doi":"10.1109/CLEOE-EQEC.2009.5192555","conference":{"start_date":"2009-06-14","name":" CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference","location":"Munich, Germany","end_date":"2009-06-19"},"main_file_link":[{"url":"https://ieeexplore.ieee.org/abstract/document/5192555"}],"publisher":"IEEE","date_updated":"2023-04-21T19:56:17Z","date_created":"2023-04-21T19:56:14Z","author":[{"first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","full_name":"Meier, Torsten","id":"344"},{"first_name":"S.W.","full_name":"Koch, S.W.","last_name":"Koch"},{"first_name":"M.","full_name":"Kira, M.","last_name":"Kira"},{"full_name":"Steiner, J.T.","last_name":"Steiner","first_name":"J.T."},{"first_name":"D.","full_name":"Golde, D.","last_name":"Golde"}],"abstract":[{"lang":"eng","text":"The paper presents a theoretical analysis of the nonlinear THz response from the internal transitions of coherent and incoherent excitons based on the formulated microscopic THz theory. Moreover, the response of unexcited semiconductors to extremely intense THz fields is investigated .The intersubband transitions of optically excited quantum wells using linear THz spectroscopy is also studied. The computed differential transmission shows a characteristic Fano-like line shape of the intersubband resonance. The pure intersubband contribution is given by a simple Lorentzian. Applying the microscopic theory, the Fano features of the total response can be attributed to the phase-sensitive superposition of the intersubband transitions and the ponderomotive contribution. These results are in excellent agreement with recent experiments."}],"status":"public","publication":" CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference","type":"conference","language":[{"iso":"eng"}],"_id":"44104","department":[{"_id":"293"}],"user_id":"49063"},{"year":"2009","citation":{"apa":"Meier, T., Koch, S. W., Rohleder, M., Gudde, J., &#38; Hofer, U. (2009). Ultrafast coherent photoelectron emission effects and their application for time-domain studies of current transport. <i>Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference</i>, 1–2. <a href=\"https://doi.org/10.1364/IQEC.2009.IThI5\">https://doi.org/10.1364/IQEC.2009.IThI5</a>","mla":"Meier, Torsten, et al. “Ultrafast Coherent Photoelectron Emission Effects and Their Application for Time-Domain Studies of Current Transport.” <i>Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference</i>, IEEE, 2009, pp. 1–2, doi:<a href=\"https://doi.org/10.1364/IQEC.2009.IThI5\">10.1364/IQEC.2009.IThI5</a>.","short":"T. Meier, S.W. Koch, M. Rohleder, J. Gudde, U. Hofer, in: Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, IEEE, 2009, pp. 1–2.","bibtex":"@inproceedings{Meier_Koch_Rohleder_Gudde_Hofer_2009, title={Ultrafast coherent photoelectron emission effects and their application for time-domain studies of current transport}, DOI={<a href=\"https://doi.org/10.1364/IQEC.2009.IThI5\">10.1364/IQEC.2009.IThI5</a>}, booktitle={Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference}, publisher={IEEE}, author={Meier, Torsten and Koch, S.W. and Rohleder, M. and Gudde, J. and Hofer, U.}, year={2009}, pages={1–2} }","chicago":"Meier, Torsten, S.W. Koch, M. Rohleder, J. Gudde, and U. Hofer. “Ultrafast Coherent Photoelectron Emission Effects and Their Application for Time-Domain Studies of Current Transport.” In <i>Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference</i>, 1–2. IEEE, 2009. <a href=\"https://doi.org/10.1364/IQEC.2009.IThI5\">https://doi.org/10.1364/IQEC.2009.IThI5</a>.","ieee":"T. Meier, S. W. Koch, M. Rohleder, J. Gudde, and U. Hofer, “Ultrafast coherent photoelectron emission effects and their application for time-domain studies of current transport,” in <i>Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference</i>, Baltimore, MD, USA, 2009, pp. 1–2, doi: <a href=\"https://doi.org/10.1364/IQEC.2009.IThI5\">10.1364/IQEC.2009.IThI5</a>.","ama":"Meier T, Koch SW, Rohleder M, Gudde J, Hofer U. Ultrafast coherent photoelectron emission effects and their application for time-domain studies of current transport. In: <i>Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference</i>. IEEE; 2009:1-2. doi:<a href=\"https://doi.org/10.1364/IQEC.2009.IThI5\">10.1364/IQEC.2009.IThI5</a>"},"page":"1-2","publication_status":"published","publication_identifier":{"eissn":["2160-9004"]},"title":"Ultrafast coherent photoelectron emission effects and their application for time-domain studies of current transport","main_file_link":[{"url":"https://ieeexplore.ieee.org/abstract/document/5225500"}],"conference":{"name":"Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference","start_date":"2009-06-04","end_date":"2009-06-02","location":"Baltimore, MD, USA"},"doi":"10.1364/IQEC.2009.IThI5","publisher":"IEEE","date_updated":"2023-04-21T20:00:20Z","author":[{"first_name":"Torsten","id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"first_name":"S.W.","last_name":"Koch","full_name":"Koch, S.W."},{"first_name":"M.","full_name":"Rohleder, M.","last_name":"Rohleder"},{"last_name":"Gudde","full_name":"Gudde, J.","first_name":"J."},{"first_name":"U.","full_name":"Hofer, U.","last_name":"Hofer"}],"date_created":"2023-04-21T20:00:17Z","abstract":[{"text":"By combining coherent control schemes and photoelectron spectroscopy it is possible to generate ultrafast current pulses at surfaces and in solids and to detect their decay directly in momentum space with femtosecond time resolution.","lang":"eng"}],"status":"public","type":"conference","publication":"Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference","language":[{"iso":"eng"}],"_id":"44105","user_id":"49063","department":[{"_id":"293"}]}]